Haiti’s president said on Friday that sexual misconduct by staff of British charity Oxfam was only the tip of an “iceberg” and called for investigations into Doctors Without Borders and other aid organizations which came to the country after its 2010 earthquake.

Haiti’s capital of Port au Prince suffered a blow to one of its iconic attractions this week as the city’s historic Marché en Fer—popularly known as Hyppolite Market or the Iron Market—was severely damaged in a late-night fire said to have started from nearby burning garbage.

Senior Oxfam staff reportedly paid for “full-on Caligula orgies” with survivors of the devastating 2010 Haitian earthquake. An investigation by The Times of London revealed multiple aid workers paid earthquake survivors for sex, including some who could have been underage. The charity has been accused of covering up the scandal by allowing three men to resign and firing four others for gross misconduct. One of the men who was allowed to resign, former Haiti Director Roland van Hauwermeiren, was given a “phased and dignified exit” for fear of damaging the charity’s reputation. Prostitution is illegal in Haiti and the age of consent is 18, but Oxfam didn’t report any of the incidents to the Haitian authorities because “it was extremely unlikely that any action would be taken.”